Ford Mustang (1999-2004) Service Manual: Transmission Description (Description and Operation)
The 4R70W has the following features:
- Wide ratio gears
- Four speeds
- Rear wheel drive
- Automatic
- Electronic shift
- Torque converter clutch control
- Line pressure controls
The transmission uses Ravigneaux-style double-pinion gearset with two bands, one one-way roller clutch, one mechanical diode and four friction clutches to produce four forward gears and Reverse.
4R70W Automatic Transmission

Automatic Transaxle/Transmission
General Specifications
a - MERCON V is not interchangeable at this time with the current MERCON
fluids. Check the
transmission fluid level indicator to determine the correct fluid and refer to
the ...
Identification Tags
All vehicles are equipped with a Vehicle Certification Label, located
on the driver side door lock post.
For correct transmission identification, refer to the code in the space
marked TR.
...
Other materials:
The better business bureau (BBB) auto line program
(U.S. Only)
Your satisfaction is important to Ford Motor Company and to your dealer.
If a warranty concern has not been resolved using the three-step
procedure outlined earlier in this chapter in the Getting the Services
You Need section, you may be eligible to participa ...
Removal
CAUTION: Electronic modules are sensitive to static electrical
charges. If exposed to
these charges, damage may result.
1. Remove the driver air bag module. For additional information,
refer to Section.
2. Remove the passenger air bag module. For ...
Assembly
1. NOTE: One tab that locks the reverse clutch drum into the reverse
sun shell may be removed.
This is done for balancing purposes.
Inspect the clutch cylinder thrust surfaces, piston bore and clutch plate
serrations for scores or
burrs. Minor scores or bu ...
